wisconsin breeding bird atlas ii...atlas ii 2015–2019 13 new breeding species not confirmed...
TRANSCRIPT
THANKS TO OUR 2,000VOLUNTEERSLook what we’ve accomplished
All 1,283 atlas blocks surveyed
161,000 bird checklists reported
243 bird species found
2.2 million observations submitted
ATLAS II 2015–2019
13 NEW BREEDING SPECIESNot Confirmed Breeding During Atlas I
LARGEST RANGE CHANGES SINCE ATLAS 1We compared the proportion of priority blocks occupied by a species during the first atlas 20 years ago to the proportion of priority blocks occupied by that species now. Grassland and boreal species are among those disappearing from the most places, whereas a variety of species including several formerly rare raptors are expanding range.
Orchard Oriole Unlike the familiar bright orange Baltimore Oriole, the Orchard Oriole is smaller and darker. Its range continues to expand northward.
WE DID IT!Fifth and final year of surveys now complete
ATLAS I 1995–2000Possible/Probable
Confirmed
Surveyed, no Orchard Oriole
ATLAS I 1995–2000
Surveyed, no Evening Grosbeak
Confirmed
Possible/Probable
80 – 9394 – 106107 – 121122 – 133134 – 150
Gray PartridgeEvening GrosbeakNorthern BobwhiteWhite-winged CrossbillConnecticut Warbler
Black-backed WoodpeckerCanada JayBoreal ChickadeeWestern MeadowlarkUpland Sandpiper
Trumpeter SwanMerlin
Orchard OrioleLark Sparrow
Carolina WrenPeregrine FalconTufted Titmouse
Red CrossbillDickcissel
Bald Eagle% CHANGE SINCE ATLAS I
(1995–2000)
-97
-86
-85
-83
-81
-77
-75
-66
-61
690
474
294
288
260
222
186
147
144
137
-66
DECREASE
INCREASE
◊ King Rail
◊ Canvasback
◊ Bufflehead
◊ Whooping Crane
◊ Glossy Ibis
◊ Mississippi Kite
◊ Eurasian Collared-Dove
◊ White-eyed Vireo
◊ Great Tit
◊ Kirtland’s Warbler
◊
◊ Blue Grosbeak
◊ European Goldfinch
Evening GrosbeakA familiar feeder bird in the north 30 years ago, this species’ range has greatly declined, leaving only the northeast forest with a regular population. Records suggest this species may historically have been rare in the east, and after the “invasion” of the past century may now be reverting to its prior distribution.
WBBA volunteers in action by Nick Anich
FIRST EVER GLOSSY IBIS BREEDING IN WISCONSINThe Glossy Ibis is a rare visitor to Wisconsin, almost exclusively nesting on the Atlantic Coast. This year two birds were seen all summer at Horicon Marsh, and in late summer they were discovered with young! This is the first documented breeding record for the species in the state. Time will tell whether this is a single occurrence, or the beginning of a new population.
Glossy Ibis by Jack Bartholmai
◊ Preliminary maps available now online: ebird.org/atlaswi/explore
◊ Full results coming in several years, watch for the book!
ATLAS II 2015–2019
What’s next?
◊ Project managers will review and finalize vast dataset
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HOW MANY SPECIES NESTED IN YOURCOUNTY?
Yellow-throated Warbler
Wisconsin Breeding Bird Atlas IIFinal Season Summary
Orchard O
riole
by
Jam
es K
inde
rman
Evening Grosbeak by Ryan Brady
For more information contact Nick Anich: [email protected] October 2019